THE HAGUE, Netherlands — Gilles Muller fired 17 aces in coming from behind to beat top-seeded David Ferrer 4-6, 6-4, 7-6 (5) for a place in the semifinals of the Ricoh Open Friday.

Second-seeded Bernard Tomic also lost after winning the first set. He was beaten 6-7 (5), 6-4, 6-2 by eighth-seeded Nicolas Mahut.

Seventh-seeded Muller next plays No. 3 Ivo Karlovic, who cruised past Adrian Mannarino 6-3, 6-4. Mahut will play fifth-seeded Sam Querrey, who routed Stefan Kozlov 6-3, 6-0.

Among the women, top-seeded Belinda Bencic beat qualifier Viktorija Golubic 7-6 (6), 7-6 (2) to set up a semifinal against Kristina Mladenovic. Mladenovic topped qualifier Elise Mertens 7-5, 6-3.

The other semifinal will pit CoCo Vandeweghe against Madison Brengle. Vandeweghe beat Evgeniya Rodina 6-2, 6-2, while Brengle defeated Kateryna Kozlova 7-5, 6-4.